"short" is the field which is dynamically joined. Now when I edit/add a row, the "short" field is also submitted via store.sync() to the backend... and the SQL database is crying because the field is not in the same table as the rest...

Is there a smooth way to cut the last field? Or is it possible that this "field" can hold two values like "name" and "id" at the same time, like a combobox?